Answer:
1/13=0.076923076923076923.it is repeating decimal. The periodicity is 6. Every 6,12,18,24,30 th decimal place is 3. Therefore every multiple of 6th decimal place is 3.
178=174+4=6*29+4. 174 is a multiple of 6 and its decimal digit is 6. Then further 4th(178th) decimal digit is “9"
Explanation: